Electric power tunnel water mist fire extinguishing partition control valve box and system

Abstract

The utility model relates to a water mist fire extinguishing partition control valve box and system for an electric power tunnel, which are applied to corresponding partitions of an aisle of the electric power tunnel and comprise a box body and a plurality of water mist spray heads, a water inlet pipe and a water outlet pipe are arranged in the box body, and one end of the water inlet pipe extends out of the box body and is communicated with a water inlet main pipe. One end of the water outlet pipe extends out of the box body and is communicated with the water mist nozzle; and a manual ball valve, an electric ball valve, a pressure gauge, a pressure switch and a manual ball valve are sequentially arranged on a pipeline between the other end of the water inlet pipe and the other end of the water outlet pipe. A communicating pipeline is formed through the water inlet pipe and the water outlet pipe, zoned water mist fire extinguishing is carried out through the water mist spray head, targeted fire extinguishing is carried out when a fire disaster occurs, the manual ball valve can control the opening and closing state of the water inlet pipe, the electric ball valve can automatically control the water mist spray head to spray water, and the pressure gauge can display water mist water supply pressure in real time. The pressure switch can send out feedback signals when the water mist spray head sprays water mist normally, and the water mist spray head is simple in structure, convenient and practical.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal fire protection, in particular to a partition control valve box and system for fine water mist fire extinguishing in a power tunnel. Background Art

[0002] With the further development of the social economy, the urban underground space has been further utilized. The urban power tunnel is an extremely important infrastructure and is crucial for the normal operation of the city. The power tunnel is in an underground closed and narrow space, and the causes of fire accidents are not easily discovered. Once a fire occurs, high-temperature smoke will quickly fill the entire fire prevention area. The risk of fire in the power tunnel is high and the fire hazard is huge. Leakage, short circuit, etc. are all likely to cause fires. Commonly used flame-retardant cables are not completely non-combustible. High-molecular materials such as polyvinyl chloride will also burn when the temperature reaches a certain limit. The high temperature generated by the burning of the cable will cause irreparable damage to the structure of the power tunnel. Therefore, it is particularly important to study the partition control of fire extinguishing in the power tunnel. In the existing power tunnels, fine water mist nozzles are set for fire extinguishing, but there is no partition control, and the pipeline structure is too primitive, which is not conducive to effectively dealing with fires when they occur. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a partition control valve box and system for fine water mist fire extinguishing in a power tunnel, which can control the fine water mist nozzles to spray fine water mist for fire extinguishing in a partitioned manner when a fire occurs in the power tunnel, aiming at the deficiencies of the above-mentioned prior art.

[0004] The technical solution for the utility model to solve the above technical problem is as follows: A partition control valve box for fine water mist fire extinguishing in a power tunnel is applied to the corresponding partition of the aisle in the power tunnel, and includes a box body and a plurality of fine water mist nozzles. An inlet pipe and an outlet pipe are arranged in the box body. One end of the inlet pipe extends out of the box body and is communicated with the main inlet pipe, and one end of the outlet pipe extends out of the box body and is communicated with the fine water mist nozzles arranged on the top wall of the aisle in the power tunnel. A manual ball valve, an electric ball valve, a pressure gauge, a pressure switch and a manual ball valve are sequentially arranged on the pipeline between the other end of the inlet pipe and the other end of the outlet pipe.

[0005] The beneficial effects of the present utility model are as follows: For the fine water mist fire extinguishing partition control valve box of the power tunnel of the present utility model, a communication pipeline is formed by the water inlet pipe and the water outlet pipe arranged in the box body, and fine water mist fire extinguishing is carried out in partitions through fine water mist nozzles, so as to carry out targeted fire extinguishing when a fire occurs. A manual ball valve is arranged on the pipeline to control the on-off state of the water inlet pipe. The electric ball valve can automatically control the fine water mist nozzles to spray water. The pressure gauge can display the water supply pressure of the fine water mist in real time. The pressure switch can send a feedback signal to the fire alarm controller when the fine water mist nozzles are spraying fine water mist normally. The structure is simple, the pipeline structure is more scientific, and it is convenient and practical.

[0006] On the basis of the above technical solution, the present utility model can also be improved as follows:

[0007] Further: One end of the water inlet pipe extending out of the box body is communicated with one end of the fine water mist main pipe, the other end of the fine water mist main pipe is communicated with the fine water mist pump room, one end of the water outlet pipe extending out of the box body is communicated with the fine water mist branch pipe, and a plurality of the fine water mist nozzles are respectively communicated with the fine water mist branch pipe.

[0008] The beneficial effect of the above further solution is: By communicating the water inlet pipe with the fine water mist main pipe and communicating the water outlet pipe with the fine water mist branch pipe, a communication pipeline can be formed between the fine water mist pump room and the fine water mist nozzles, and remote fine water mist spraying can be realized under the control of the electric ball valve.

[0009] Further: The fine water mist fire extinguishing partition control valve box of the power tunnel further includes a filter, and the filter is arranged in the box body and on the pipeline between the manual ball valve and the electric ball valve.

[0010] The beneficial effect of the above further solution is: By arranging the filter, impurities in the water in the pipeline can be filtered to avoid blocking the fine water mist nozzles.

[0011] Further: The fine water mist fire extinguishing partition control valve box of the power tunnel further includes a test valve, and the test valve is arranged in the box body and on the pipeline between the electric ball valve and the pressure gauge.

[0012] The beneficial effect of the above further solution is: By arranging the test valve, the water supply pressure of the fine water mist can be adjusted during the test to better meet the actual requirements.

[0013] Further: The fine water mist fire extinguishing partition control valve box of the power tunnel further includes a switch wiring module and an electric ball valve switch button. The switch wiring module is arranged in the box body, and the switch wiring module is electrically connected to the electric ball valve through the electric ball valve switch button.

[0014] The beneficial effects of the above further solution are as follows: By setting the switch wiring module, it can be linked with the electric ball valve and control the working state of the electric ball valve to achieve automatic fine water mist spraying control.

[0015] Furthermore: The fine water mist fire extinguishing partition control valve box of the power tunnel further includes an electric ball valve switch button, which is arranged on the switch wiring module and is electrically connected to the switch wiring module.

[0016] The beneficial effects of the above further solution are as follows: By setting the electric ball valve switch button, the working state of the electric ball valve can be manually controlled to facilitate manually opening the fine water mist spraying in the test state or other emergency situations.

[0017] The present utility model also provides a fine water mist fire extinguishing partition control system for a power tunnel, which includes a plurality of boxes and the fine water mist fire extinguishing partition control valve box of the power tunnel. The plurality of boxes are arranged at intervals in the aisle of the power tunnel. One end of the water inlet pipe of each box extending out of the box is communicated with the main fine water mist pipe, and one end of the water outlet pipe of each box extending out of the box is communicated with the fine water mist branch pipe.

[0018] In the fine water mist fire extinguishing partition control system of the power tunnel of the present utility model, by arranging the plurality of boxes at intervals in the aisle of the power tunnel, zoned fine water mist fire extinguishing in the power tunnel is realized. Moreover, the water inlet pipes and water outlet pipes of each box are independent of each other and do not affect each other, and can be controlled separately. The whole system has a simple structure, a more scientific design, and is convenient for control and maintenance. Brief Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the fine water mist fire extinguishing partition control valve box of the power tunnel according to an embodiment of the present utility model;

[0020] Figure 2 It is a schematic side view structure diagram of the box according to an embodiment of the present utility model;

[0021] Figure 3 It is a schematic top view structure diagram of the box according to an embodiment of the present utility model;

[0022] Figure 4 It is a wiring schematic diagram of the switch wiring module according to an embodiment of the present utility model;

[0023] Figure 5 It is a layout schematic diagram of the fine water mist fire extinguishing partition control system for the power tunnel according to an embodiment of the present utility model.

[0024] In the drawings, the list of components represented by each reference numeral is as follows:

[0025] 1. Water inlet pipe, 2. Box body, 3. Manual ball valve, 4. Filter, 5. Electric ball valve, 6. Test valve, 7. Pressure gauge, 8. Pressure switch, 9. Switch wiring module, 10. Electric ball valve switch button, 11. Water outlet pipe. Detailed implementation manner

[0026] The principles and features of the present utility model will be described below with reference to the accompanying drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.

[0027] As Figures 1 to 4 shown, a fine water mist fire extinguishing partition control valve box for a power tunnel is applied to the corresponding partition of the aisle in the power tunnel, and includes a box body 2 and a plurality of fine water mist nozzles 12. An inlet pipe 1 and an outlet pipe 11 are arranged in the box body 2. One end of the inlet pipe 1 extends out of the box body 2 and is communicated with the main water inlet pipe, and one end of the outlet pipe 11 extends out of the box body 2 and is communicated with the fine water mist nozzles 12 arranged on the top wall of the aisle in the power tunnel. A manual ball valve 3, an electric ball valve 5, a pressure gauge 7, a pressure switch 8 and a manual ball valve 3 are sequentially arranged on the pipeline between the other end of the inlet pipe 1 and the other end of the outlet pipe 11.

[0028] For the fine water mist fire extinguishing partition control valve box of the present utility model, a communication pipeline is formed by the inlet pipe 1 and the outlet pipe 11 arranged in the box body 2, and fine water mist fire extinguishing is carried out in a partition manner through the fine water mist nozzles 12, so as to carry out targeted fire extinguishing when a fire occurs. The manual ball valve 3 is arranged on the pipeline to control the on-off state of the inlet pipe 1. The electric ball valve 5 can automatically control the fine water mist nozzles 12 to spray water. The pressure gauge 7 can display the water supply pressure of the fine water mist in real time. The pressure switch 8 can send a feedback signal to the fire alarm controller when the fine water mist nozzles 12 are normally spraying fine water mist. The structure is simple, the pipeline structure is more scientific, and it is convenient and practical.

[0029] In one or more embodiments of the present utility model, one end of the inlet pipe 1 extending out of the box body 2 is communicated with one end of the main fine water mist pipe, and the other end of the main fine water mist pipe is communicated with the fine water mist pump room. One end of the outlet pipe 11 extending out of the box body 2 is communicated with the fine water mist branch pipe, and a plurality of the fine water mist nozzles 12 are respectively communicated with the fine water mist branch pipe. By communicating the inlet pipe 1 with the main fine water mist pipe and communicating the outlet pipe 11 with the fine water mist branch pipe, a communication pipeline can be formed between the fine water mist pump room and the fine water mist nozzles 12, and remote fine water mist spraying can be realized under the control of the electric ball valve 5.

[0030] In practice, one end of the water outlet pipe 11 extending out of the box 2 is connected to the water mist branch pipe, each box 2 corresponds to four water mist nozzles 12, and the water mist branch pipes are respectively connected to the four water mist nozzles 12, and each water mist nozzle 12 is 5 meters apart. The dimensions of the partition control box 2 for different water mist main pipe diameters are shown in Table 1 below:

[0031] Table 1: Partition control box size selection table

[0032] Model W W1 W2 B b H DN20 480 310 220 180 68 600 DN32 550 380 255 210 80 700 DN50 600 410 280 230 77 800

[0033] Optionally, in one or more embodiments of the utility model, the power tunnel water mist fire extinguishing partition control valve box further includes a filter 4, which is arranged in the box body 2 and located on the pipeline between the manual ball valve 3 and the electric ball valve 5. By providing the filter 4, impurities in the water in the pipeline can be filtered to avoid clogging the water mist head 12.

[0034] In one or more embodiments of the utility model, the power tunnel water mist fire extinguishing partition control valve box further includes a test valve 6, which is arranged in the box body 2 and located on the pipeline between the electric ball valve 5 and the pressure gauge 7. By setting the test valve 6, the water pressure of the water mist supply can be adjusted during the test to better meet the actual needs.

[0035] In one or more embodiments of the utility model, the power tunnel water mist fire extinguishing partition control valve box further includes a switch wiring module 9 and an electric ball valve switch button 10, wherein the switch wiring module 9 is arranged in the box body 2, and the switch wiring module 9 is electrically connected to the electric ball valve 5 through the electric ball valve switch button 10. By setting the switch wiring module 9, it is possible to link with the electric ball valve 5 and control the working state of the electric ball valve 5 to realize automatic water mist spraying control.

[0036] In the automatic state, after the high-pressure fine water mist fire extinguishing system alarm host receives an alarm from one detector in the fire extinguishing zone, it will start the sound and light alarm in linkage; after receiving an alarm from two detectors, it will output a fire confirmation signal, and the switch wiring module 9 will start the electric ball valve 5 of the corresponding zone and the main pump of the fine water mist pump room in linkage, spraying fine water mist for fire extinguishing. The pressure switch 8 in the control valve group will feedback the system spraying signal, and the fire extinguishing alarm host will start the corresponding spray indicator light in linkage.

[0037] Optionally, in one or more embodiments of the utility model, the power tunnel water mist fire extinguishing partition control valve box further includes an electric ball valve switch button 10, which is arranged on the switch wiring module 9, and the electric ball valve switch button 10 is electrically connected to the switch wiring module 9. By setting the electric ball valve switch button 10, the working state of the electric ball valve 5 can be manually controlled, so as to manually start the water mist spraying in the test state or other emergency situations.

[0038] The wiring method of the switch wiring module 9 is as follows: No. 1 terminal is connected to the positive pole of DC24V; No. 2 terminal is connected to the negative pole of DC24V. Note that the polarity of the power supply cannot be reversed, and the starting current of the DC24V power supply is not less than 5A; No. 2 terminal and No. 3 terminal are connected to the passive normally open contact of the relay that controls the opening of the partition to control the opening of the partition; when No. 2 terminal and No. 3 terminal are disconnected, the valve of the electric ball valve 5 is in a closed state, and when No. 2 terminal and No. 3 terminal are connected, the valve of the electric ball valve 5 is in an open state, and the current valve opening state can be seen from the dial on the valve of the electric ball valve 5, "O" is the open limit position, and "S" is the closed limit position. Terminals 4 and 5 are the pressure switch feedback of the partition, connected to the feedback end of the background controller, and are passive normally open contacts. When the water pressure in the pipeline of the partition reaches the set pressure, it closes and gives a feedback signal; Terminals 6, 7 and 8 are spare terminals.

[0039] In the embodiment of the utility model, the water inlet pipe 1 is used to control the water inlet of the valve box, the water outlet pipe 11 is used to control the water outlet of the valve box and supply water to the fine water mist nozzle 12, the box body 2 is used to encapsulate the partition control valve group, the manual ball valve 3 is used to manually control the switch state of the water inlet, and the manual ball valve 3 remains in an open state during normal operation. The filter 4 is installed after the manual ball valve 3 at the water inlet end, and is used to filter impurities such as fine water mist spraying. The electric ball valve 5 is installed after the filter, and is used to automatically control the water spraying of the fine water mist nozzle 12. The test valve 6 is installed after the electric ball valve 5 and before the pressure gauge 7, and is used to adjust the water pressure of the fine water mist water supply. The pressure gauge 7 is installed after the test valve 6, and is used to display the water pressure of the fine water mist water supply. The pressure switch 8 is installed after the pressure gauge 7. When the fine water mist nozzle 12 sprays fine water mist normally, the pressure switch 8 sends a feedback signal to the fire alarm controller. The open wiring module 9 is used to link and control the working state of the electric ball valve 5, and the electric ball valve switch button 10 is used to manually control the working state of the electric ball valve 5.

[0040] like Figure 5As shown in the figure, the utility model also provides a fine water mist fire extinguishing zoning control system for a power tunnel, which includes a plurality of boxes 2 and the fine water mist fire extinguishing zoning control valve box for the power tunnel. The plurality of boxes 2 are arranged at intervals in the aisle of the power tunnel. One end of the water inlet pipe 1 of each box 2 extending out of the box 2 is communicated with the main fine water mist pipe, and one end of the water outlet pipe 11 of each box 2 extending out of the box 2 is communicated with the fine water mist branch pipe.

[0041] For the fine water mist fire extinguishing zoning control system of the power tunnel of the utility model, by arranging a plurality of boxes 2 at intervals in the aisle of the power tunnel, the zoned fine water mist fire extinguishing in the power tunnel is realized. Moreover, the water inlet pipe 1 and the water outlet pipe 11 of each box 2 are independent of each other and do not affect each other, and can be controlled separately. The whole system has a simple structure, more scientific design, and is convenient for control and maintenance.

[0042] In practice, a partition control box 2 is arranged every 20 meters along the direction of the aisle in the power tunnel, and the water inlet pipe 1 of each box 2 is respectively communicated with the main fine water mist pipe, and the water outlet pipe 11 is communicated with the fine water mist branch pipe.

[0043] The above are only the preferred embodiments of the utility model, and are not intended to limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the utility model shall be included within the protection scope of the utility model.

Claims

1. A fine water mist fire extinguishing partition control valve box for a power tunnel, which is applied to the corresponding partition of the aisle in the power tunnel, and is characterized in that: It includes a box body (2) and a plurality of water mist nozzles (12). An inlet pipe (1) and an outlet pipe (11) are arranged in the box body (2). One end of the inlet pipe (1) extends out of the box body (2) and is communicated with the main inlet pipe. One end of the outlet pipe (11) extends out of the box body (2) and is communicated with the water mist nozzle (12) arranged on the top wall of the aisle in the power tunnel. On the pipeline between the other end of the inlet pipe (1) and the other end of the outlet pipe (11), a manual ball valve (3), an electric ball valve (5), a pressure gauge (7), a pressure switch (8) and a manual ball valve (3) are arranged in sequence.

2. The fine water mist fire extinguishing partition control valve box for a power tunnel according to claim 1, characterized in that: One end of the inlet pipe (1) extending out of the box body (2) is communicated with one end of the main water mist pipe, the other end of the main water mist pipe is communicated with the water mist pump house, one end of the outlet pipe (11) extending out of the box body (2) is communicated with the water mist branch pipe, and a plurality of the water mist nozzles (12) are respectively communicated with the water mist branch pipe.

3. The fine water mist fire extinguishing partition control valve box for the power tunnel according to claim 1, wherein: It further includes a filter (4). The filter (4) is arranged in the box body (2) and on the pipeline between the manual ball valve (3) and the electric ball valve (5).

4. The fine water mist fire extinguishing partition control valve box for the power tunnel according to claim 3, wherein: It further includes a test valve (6). The test valve (6) is arranged in the box body (2) and on the pipeline between the electric ball valve (5) and the pressure gauge (7).

5. The fine water mist fire extinguishing partition control valve box for a power tunnel according to claim 1, wherein: It further includes a switch wiring module (9). The switch wiring module (9) is arranged in the box body (2), and the switch wiring module (9) is electrically connected to the electric ball valve (5).

6. The fine water mist fire extinguishing partition control valve box for a power tunnel according to claim 5, characterized in that: It further includes an electric ball valve switch button (10). The electric ball valve switch button (10) is arranged on the switch wiring module (9), and the electric ball valve switch button (10) is electrically connected to the switch wiring module (9).

7. A fine water mist fire extinguishing zoning control system for a power tunnel, characterized in that: It includes a plurality of box bodies (2) and the water mist fire extinguishing partition control valve box for the power tunnel according to any one of claims 1-6. The plurality of box bodies (2) are arranged at intervals in the aisle of the power tunnel. One end of the inlet pipe (1) of each box body (2) extending out of the box body (2) is communicated with the main water mist pipe, and one end of the outlet pipe (11) of each box body (2) extending out of the box body (2) is communicated with the water mist branch pipe.

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